<SEC-DOCUMENT>0000919574-11-002112.txt : 20110310
<SEC-HEADER>0000919574-11-002112.hdr.sgml : 20110310
<ACCEPTANCE-DATETIME>20110310163954
ACCESSION NUMBER:		0000919574-11-002112
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110228
FILED AS OF DATE:		20110310
DATE AS OF CHANGE:		20110310

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Invesco Insured Municipal Income Trust
		CENTRAL INDEX KEY:			0000885601
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				133647663
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		C/O MORGAN STANLEY TRUST
		STREET 2:		HARBORSIDE FINANCIAL CENTER, PLAZA TWO
		CITY:			JERSEY CITY
		STATE:			NJ
		ZIP:			07311
		BUSINESS PHONE:		404-439-3217

	MAIL ADDRESS:	
		STREET 1:		1555 PEACHTREE STREET, N.E.
		STREET 2:		SUITE 1800
		CITY:			ATLANTA
		STATE:			2Q
		ZIP:			30309

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MORGAN STANLEY INSURED MUNICIPAL INCOME TRUST
		DATE OF NAME CHANGE:	20090722

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MORGAN STANLEY  INSURED MUNICIPAL INCOME TRUST
		DATE OF NAME CHANGE:	20011220

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MORGAN STANLEY DEAN WITTER INSURED MUNICIPAL INCOME TRUST
		DATE OF NAME CHANGE:	19981221

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brigade Leveraged Capital Structures Fund Ltd.
		CENTRAL INDEX KEY:			0001421307
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-06590
		FILM NUMBER:		11678962

	BUSINESS ADDRESS:	
		STREET 1:		C/O OGIER FIDUCIARY SERVICES (CAY) LTD.
		STREET 2:		89 NEXUS WAY, CAMANA BAY
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9007
		BUSINESS PHONE:		(345) 949-9876

	MAIL ADDRESS:	
		STREET 1:		C/O OGIER FIDUCIARY SERVICES (CAY) LTD.
		STREET 2:		89 NEXUS WAY, CAMANA BAY
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9007

	FORMER NAME:	
		FORMER CONFORMED NAME:	Brigade Leveraged Capital Structures Offshore Ltd.
		DATE OF NAME CHANGE:	20091215

	FORMER NAME:	
		FORMER CONFORMED NAME:	BRIGADE LEVERAGED CAPITAL STRUCTURES FUND LTD.
		DATE OF NAME CHANGE:	20071214
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>p1178326.xml
<DESCRIPTION>BRIGADE LCS FUND LTD
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-02-28</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000885601</issuerCik>
        <issuerName>Invesco Insured Municipal Income Trust</issuerName>
        <issuerTradingSymbol>IIM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001421307</rptOwnerCik>
            <rptOwnerName>Brigade Leveraged Capital Structures Fund Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OGIER FIDUCIARY SVCS (CAYMAN) LTD</rptOwnerStreet1>
            <rptOwnerStreet2>89 NEXUS WAY, CAMANA BAY</rptOwnerStreet2>
            <rptOwnerCity>GRAND CAYMAN</rptOwnerCity>
            <rptOwnerState>E9</rptOwnerState>
            <rptOwnerZipCode>KY1-9007</rptOwnerZipCode>
            <rptOwnerStateDescription>CAYMAN ISLANDS</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Auction Rate Preferred Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>229</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Consistent with the Securities and Exchange Commission's Auction Rate Securities Global Exemptive Relief no action letter issued on September 22, 2008, the shares reported herein represent the reporting person's combined holdings in the separate series of preferred shares of the issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Brigade Leveraged Capital Structures Fund Ltd., By: /s/ Donald E. Morgan, III, Director</signatureName>
        <signatureDate>2011-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
